how long are mixed chems good for?

[AshleyC]

I made up some black and white chems just over a week ago to develop a couple of rolls but got sidetracked and never did it. The developer is R09 One Shot. Would is still be useable now?

 

[Nod]

Found this. Looks like it's best used as fresh as possible rather than being left diluted for a while.

http://www.martinzimelka.com/pages/AGFA_Rodinal.html

 

[Asha]

I made up some black and white chems just over a week ago to develop a couple of rolls but got sidetracked and never did it. The developer is R09 One Shot. Would is still be useable now?

Will you be distraught if you stuff your exposed shots??.......If no then use the chems and take a chance, otherwise mix a new batch!

 

[Terrywoodenpic]

One shot developers rarely keep. A few days in a full airtight bottle might be the limit. Neofin blue might still work after a couple of hours but not more.

I used to chuck out three gallon tanks of D76 once a year, but I kept them topped up with replinisher or fresh developer, and kept them covered with a floating lid, between times. The fix would die probably every 3 months, even if topped up, as it saturated with silver.

 

[steveo_mcg]

As above, it depends on the soup I'd not risk something like rodinal which is designed to be diluted and used near immediately.

 

[AshleyC]

ok cheers peeps i'll mix up a new batch